English

hydrotelluric

From hydro- + telluric.

Proto-Indo-European *wed- ‘water’

Proto-Indo-European *wódr̥ ‘water’

Proto-Hellenic *údōr ‘water’

Ancient Greek ῡ̆̔́δωρ ‘water’

French tellurique ‘telluric (all senses)’

Today it means

adj Formed by hydrogen and tellurium.

Language periods are conventional ranges, not dates for this word.

Etymograph / hydrotelluric